[Bug fortran/115997] Findloc does not find the result of a function with a deferred-length character return value

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115997

--- Comment #3 from anlauf at gcc dot gnu.org ---
The original issue was reported for findloc, but did occur with several other
intrinsics accepting deferred-length character.  If you edit the bugzilla
search to include resolved issues, you will also see the mentioned one.

You have several options to go beyond 13.1:
- try upgrading to 13.3
- wait for the upcoming 14.2 release (expected soon)